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Page 31 / 116 Scroll up to view Page 26 - 30
Wireless-G Router WGR614v9 Reference Manual
Safeguarding Your Network
2-7
v1.1, May 2008
•
Channel
. This field determines which operating frequency is used. It should not be necessary
to change the wireless channel unless you notice interference problems with another nearby
wireless network. The wireless router uses channel bonding technology to extend the
bandwidth for data transmission. For more information about the wireless channel
frequencies, see the online document that you can access from
“Wireless Networking Basics”
in Appendix B
.
•
Mode
. This field determines which data communications protocol is used. You can choose
from: b and g; or g only.
•
Security Options
. The selection of wireless security options can significantly affect your
network performance. The time it takes to establish a wireless connection can vary depending
on both your security settings and router placement.
WEP connections can take slightly longer to establish. Also, WEP, WPA-PSK, and WPA2-
PSK encryption can consume more battery power on a notebook computer, and can cause
significant performance degradation with a slow computer. Instructions for configuring the
security options can be found in
“Choosing Appropriate Wireless Security” on page 2-1
. A full
explanation of wireless security standards is available in the online document that you can
access from
“Wireless Networking Basics” in Appendix B
.
3.
Click
Apply
to save your settings.
Configuring WEP Wireless Security
WEP Shared Key authentication and WEP data encryption can be defeated by a determined
eavesdropper using publicly available tools.
WEP offers the following options:
•
Open System
. With Open System authentication and 64 or 128 bit WEP data encryption, the
Wireless-G Router
does
perform data encryption but
does not
perform any authentication.
Anyone can join the network. This setting provides very little practical wireless security.
•
Shared Key
. With Shared Key authentication, a wireless device must know the WEP key to
join the network. Select the encryption strength (64 or 128 bit data encryption). Manually
enter the key values, or enter a word or group of printable characters in the
Passphrase
field.
Manually entered keys
are not
case-sensitive, but passphrase characters
are
case-sensitive.
Page 32 / 116
Wireless-G Router WGR614v9 Reference Manual
2-8
Safeguarding Your Network
v1.1, May 2008
To configure WEP data encryption:
1.
Select
Wireless Settings
under Setup in the main menu.
2.
In the Security Options section, select
WEP
. The WEP options display.
.
3.
Select the authentication type and encryption strength.
4.
You can manually or automatically program the four data encryption keys. These values must
be identical on all computers and access points in your network.
•
Automatic
. In the
Passphrase
field, enter a word or group of printable characters, and
click
Generate
. The passphrase is case-sensitive. For example, NETGEAR is not the
same as nETgear. The four key fields are automatically populated with key values.
•
Manual
. Enter 10 hexadecimal digits (any combination of 0–9, a–f, or A–F). These
entries are not case-sensitive. For example, AA is the same as aa.
Select which of the four keys to activate.
5.
Click
Apply
to save your settings.
Note:
If you use a wireless computer to configure WEP settings, you will be disconnected
when you click
Apply
. You must then either configure your wireless adapter to
match the wireless router WEP settings or access the wireless router from a wired
computer to make any further changes. Not all wireless adapter configuration
utilities support passphrase key generation.
Figure 2-3
Page 33 / 116
Wireless-G Router WGR614v9 Reference Manual
Safeguarding Your Network
2-9
v1.1, May 2008
Configuring WPA-PSK and WPA2-PSK Wireless Security
Wi-Fi Protected Access with Pre-Shared Key (WPA-PSK and WPA2-PSK) data encryption
provides extremely strong data security, very effectively blocking eavesdropping. Because WPA
and WPA2 are relatively new standards, older wireless adapters and devices might not support
them. Check whether newer drivers are available from the manufacturer. Also, you might be able
to use the Push 'N' Connect feature to configure this type of security if it is supported by your
wireless clients. See
“Restricting Wireless Access by MAC Address” on page 2-11
.
WPA–Pre-Shared Key
does
perform authentication. WPA-PSK uses TKIP (Temporal Key
Integrity Protocol) data encryption, and WPA2-PSK uses AES (Advanced Encryption Standard)
data encryption. Both methods dynamically change the encryption keys making them nearly
impossible to circumvent.
Mixed mode allows clients using either WPA-PSK (TKIP) or WPA2-PSK (AES). This provides
the most reliable security, and is easiest to implement, but it might not be compatible with older
adapters.
To configure WPA-PSK, WPA2-PSK, or WPA-PSK+WPA2-PSK:
1.
Select
Wireless Settings
under Setup in the main menu.
2.
Select one of the WPA-PSK or WPA2-PSK options for the security type. The third option
(WPA-PSK [TKIP] + WP2-PSK [AES]) is the most flexible, since it allows clients using
either WPA-PSK or WPA2-PSK.
3.
In the
Passphrase
field, enter a word or group of 8–63 printable characters. The passphrase is
case-sensitive.
Note:
Not all wireless adapters support WPA. Furthermore, client software is also
required. Windows XP with Service Pack 2 does include WPA support.
Nevertheless, the wireless adapter hardware and driver must also support WPA.
For instructions on configuring wireless computers or PDAs (personal digital
assistants) for WPA-PSK security, consult the documentation for the product you
are using.
Page 34 / 116
Wireless-G Router WGR614v9 Reference Manual
2-10
Safeguarding Your Network
v1.1, May 2008
4.
Click
Apply
to save your settings.
Viewing Advanced Wireless Settings
This section describes the wireless settings that you can view and specify in the Advanced
Wireless Settings screen, which you access under Advanced in the main menu.
To configure the advanced wireless security settings of your router:
1.
Log in to the router as described in
“Logging In to Your Wireless Router” on page 1-2
.
2.
Select
Wireless Settings
under Advanced in the main menu.
Figure 2-4
Figure 2-5
Page 35 / 116
Wireless-G Router WGR614v9 Reference Manual
Safeguarding Your Network
2-11
v1.1, May 2008
The available settings in this screen are:
•
Enable SSID Broadcast
. Clear this check box to disable broadcast of the SSID, so that
only devices that know the correct SSID can connect. Disabling SSID broadcast nullifies
the wireless network discovery feature of some products such as Windows XP.
•
Enable Wireless Router Radio
. If you disable the wireless router radio, wireless devices
cannot connect to the Wireless-G Router. If you will not be using your wireless network
for a period of time, you can clear this check box and disable all wireless connectivity.
•
Enable WMM
. Clear this check box to disable WMM. Disabling WMM turns off the
wireless prioritization scheme. Note that wireless clients must also support WMM to take
advantage of this feature.
•
Wireless Card Access List
. For information about this list, see
“Restricting Wireless
Access by MAC Address” on page 2-11
.
.
Restricting Wireless Access by MAC Address
When a Wireless Card Access List is configured and enabled, the router checks the MAC address
of any wireless device attempting a connection and allows only connections to computers
identified on the trusted computers list.
The Wireless Card Access List displays a list of wireless computers that you allow to connect to
the router based on their MAC addresses. These wireless computers must also have the correct
SSID and wireless security settings to access the wireless router.
The MAC address is a network device’s unique 12-character physical address, containing the
hexadecimal characters 0–9, a–f, or A–F only, and separated by colons (for example,
00:09:AB:CD:EF:01). It can usually be found on the bottom of the wireless card or network
interface device. If you do not have access to the physical label, you can display the MAC address
using the network configuration utilities of the computer. In WindowsXP, for example, typing the
ipconfig/all
command in an MSDOS command prompt window displays the MAC address as
Physical Address. You might also find the MAC addresses in the router’s Attached Devices screen.
To restrict access based on MAC addresses:
1.
Select
Wireless Settings
under Advanced in the main menu.
Note:
The Fragmentation Threshold, CTS/RTS Threshold, and Preamble Mode
options are reserved for wireless testing and advanced configuration only. Do
not change these settings.

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